{"id":39222,"date":"2024-11-26T13:06:15","date_gmt":"2024-11-26T05:06:15","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39222\/"},"modified":"2024-11-26T13:06:15","modified_gmt":"2024-11-26T05:06:15","slug":"java%e6%80%8e%e4%b9%88%e9%9a%8f%e6%9c%ba%e4%ba%a7%e7%94%9f%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39222\/","title":{"rendered":"java\u600e\u4e48\u968f\u673a\u4ea7\u751f\u4e8c\u7ef4\u6570\u7ec4"},"content":{"rendered":"

\n \u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u53ef\u4ee5\u5728 Java \u4e2d\u968f\u673a\u751f\u6210\u4e8c\u7ef4\u6570\u7ec4\uff1a1. \u786e\u5b9a\u6570\u7ec4\u7684\u884c\u6570\u548c\u5217\u6570\uff1b2. \u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff1b3. \u4f7f\u7528\u968f\u673a\u6570\u751f\u6210\u5668\u4e3a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5206\u914d\u968f\u673a\u503c\uff1b4. \u8fd4\u56de\u751f\u6210\u7684\u6570\u7ec4\u3002\u793a\u4f8b\u4ee3\u7801\uff1a`javaimport java.util.Random;public class GenerateRandom2DArray {public static int[][] generateRandom2DArray(int num_rows, int num_cols) { int[][\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u968f\u673a\u4ea7\u751f\u4e8c\u7ef4\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u968f\u673a\u751f\u6210\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n

\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u79cd\u5305\u542b\u591a\u4e2a\u4e00\u7ef4\u6570\u7ec4\u7684\u6570\u636e\u7ed3\u6784\u3002\u8981\u968f\u673a\u751f\u6210\u4e8c\u7ef4\u6570\u7ec4\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

    \n
  1. \u786e\u5b9a\u6570\u7ec4\u7684\u884c\u5217\u6570\uff1a<\/strong>\u9996\u5148\u9700\u8981\u786e\u5b9a\u8981\u751f\u6210\u7684\u6570\u7ec4\u7684\u884c\u5217\u6570\uff0c\u5373\u6570\u7ec4\u7684\u7ef4\u5ea6\u3002<\/li>\n
  2. \n

    \u521b\u5efa\u6570\u7ec4\uff1a<\/strong>\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

    int[][] array = new int[num_rows][num_cols];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5176\u4e2d\uff0cnum_rows \u548c num_cols \u5206\u522b\u4ee3\u8868\u6570\u7ec4\u7684\u884c\u6570\u548c\u5217\u6570\u3002<\/p>\n
    \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<\/li>\n
  3. \n
    \u968f\u673a\u751f\u6210\u5143\u7d20\uff1a<\/strong>\u4f7f\u7528\u968f\u673a\u6570\u751f\u6210\u5668\u4e3a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5206\u914d\u968f\u673a\u503c\u3002\u53ef\u4ee5\u5229\u7528 Math.random() \u65b9\u6cd5\u751f\u6210\u4ecb\u4e8e 0 \u548c 1 \u4e4b\u95f4\u7684\u968f\u673a\u6570\uff0c\u7136\u540e\u6839\u636e\u9700\u8981\u8fdb\u884c\u8c03\u6574\u3002\u4f8b\u5982\uff1a<\/p>\n
    for (int i = 0; i < num_rows; i++) {\n    for (int j = 0; j < num_cols; j++) {\n        array[i][j] = (int)(Math.random() * 100); \/\/ \u751f\u6210 0 \u5230 99 \u4e4b\u95f4\u7684\u968f\u673a\u6570\n    }\n}<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n
  4.  \u8fd4\u56de\u6570\u7ec4\uff1a<\/strong>\u5b8c\u6210\u968f\u673a\u5143\u7d20\u5206\u914d\u540e\uff0c\u5373\u53ef\u8fd4\u56de\u751f\u6210\u7684\u4e8c\u7ef4\u6570\u7ec4\u3002<\/li>\n<\/ol>\n
    \u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n
    import java.util.Random;\n\npublic class GenerateRandom2DArray {\n\n    public static int[][] generateRandom2DArray(int num_rows, int num_cols) {\n        int[][] array = new int[num_rows][num_cols];\n\n        Random random = new Random();\n        for (int i = 0; i < num_rows; i++) {\n            for (int j = 0; j < num_cols; j++) {\n                array[i][j] = random.nextInt(100);\n            }\n        }\n\n        return array;\n    }\n\n    public static void main(String[] args) {\n        int[][] array = generateRandom2DArray(5, 5);\n\n        for (int[] row : array) {\n            for (int value : row) {\n                System.out.print(value + \" \");\n            }\n            System.out.println();\n        }\n    }\n}<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8fd9\u6bb5\u4ee3\u7801\u751f\u6210\u4e86\u4e00\u4e2a 5×5 \u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5e76\u5c06\u5176\u6253\u5370\u5230\u63a7\u5236\u53f0\u4e0a\u3002<\/p>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u968f\u673a\u4ea7\u751f\u4e8c\u7ef4\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u53ef\u4ee5\u5728 Java \u4e2d\u968f\u673a\u751f\u6210\u4e8c\u7ef4\u6570\u7ec4\uff1a1. \u786e\u5b9a\u6570\u7ec4\u7684\u884c\u6570\u548c\u5217\u6570\uff1b2. \u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff1b3. \u4f7f\u7528\u968f\u673a\u6570\u751f\u6210\u5668\u4e3a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5206\u914d\u968f\u673a\u503c\uff1b4. \u8fd4\u56de\u751f\u6210\u7684\u6570\u7ec4\u3002\u793a\u4f8b\u4ee3\u7801\uff1a`javaimport java.util.Random;public class GenerateRandom2DArray {public static int[][] generateRandom2DArray(int num_rows, int num_cols) { int[][ \u5982\u4f55\u5728 Java \u4e2d\u968f\u673a\u751f\u6210\u4e8c\u7ef4\u6570\u7ec4 \u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u79cd\u5305\u542b\u591a\u4e2a\u4e00\u7ef4\u6570\u7ec4\u7684\u6570\u636e\u7ed3\u6784\u3002\u8981\u968f\u673a\u751f\u6210\u4e8c\u7ef4\u6570\u7ec4\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u786e\u5b9a\u6570\u7ec4\u7684\u884c\u5217\u6570\uff1a\u9996\u5148\u9700\u8981\u786e\u5b9a\u8981\u751f\u6210\u7684\u6570\u7ec4\u7684\u884c\u5217\u6570\uff0c\u5373\u6570\u7ec4\u7684\u7ef4\u5ea6\u3002 \u521b\u5efa\u6570\u7ec4\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a int[][] array = new int[num_rows][num_cols]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0cnum_rows \u548c num_cols \u5206\u522b\u4ee3\u8868\u6570\u7ec4\u7684\u884c\u6570\u548c\u5217\u6570\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u968f\u673a\u751f\u6210\u5143\u7d20\uff1a\u4f7f\u7528\u968f\u673a\u6570\u751f\u6210\u5668\u4e3a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5206\u914d\u968f\u673a\u503c\u3002\u53ef\u4ee5\u5229\u7528 Math.random() \u65b9\u6cd5\u751f\u6210\u4ecb\u4e8e 0 \u548c 1 \u4e4b\u95f4\u7684\u968f\u673a\u6570\uff0c\u7136\u540e\u6839\u636e\u9700\u8981\u8fdb\u884c\u8c03\u6574\u3002\u4f8b\u5982\uff1a for (int i = 0; i < num_rows; […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-39222","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39222","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=39222"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39222\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39222"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}